M485-DI8-I offers 6 completely independent channels and 2 common land channels for digital input. The various inputs have channel for isolation. In addition, you can choose either sinking or source input via wiring connections. All channels can be used as 16-bit has 8 LED indicators for di-channel status monitoring. 4 kV ESD protection and 5000 VRMS intramodulisulation are standard.